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Is iterating ConcurrentHashMap values thread safe?
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You may use this class to test two accessing threads and one mutating the shared instance of ConcurrentHashMap:
import java.util.Map;
import java.util.Random;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
import java.util.conc...
Find row where values for column is maximal in a pandas DataFrame
...nto unexpectedly missing data.
So you're left with hoping that your unit tests covered everything (they didn't, or more likely no one wrote any tests) -- otherwise (most likely) you're just left waiting to see if you happen to smack into this error at runtime, in which case you probably have to go...
Giving a border to an HTML table row,
... border. That should fix compatibility. I only have Chrome atm, so I can't test it.
– takendarkk
Jan 1 '14 at 19:32
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How does data binding work in AngularJS?
...is a hard question to answer as many factors come into play, but here is a test case: http://jsperf.com/angularjs-digest/6 which creates 10,000 watchers. On a modern browser this takes just under 6 ms. On Internet Explorer 8 it takes about 40 ms. As you can see, this is not an issue even on slow...
How to comment a block in Eclipse?
... missing "/* */" tags. At least this is what i see using Juno under Linux. Test it out first!
– mohbandy
Oct 23 '13 at 15:24
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JavaScript - Get minutes between two dates
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I found an error when testing this answer: DiffHrs may be wrong If you set the minutes in the Date object. For example if Christmas is "12-25-2015 03:55" and today is "12-25-2015 02:00" then the hourDiff is two hours. Should be one hour.
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How to determine function name from inside a function
... Sure, and that's convenient, but terrible for maintenance and testing. Don't be lazy, be explicit.
– bschlueter
Nov 1 '16 at 19:22
add a comment
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Dialog to pick image from gallery or from camera
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It works perfectly, Mario. Thank you so much! I tested it in a Samsung GT-I9100, a LG L7, but it fails when we try to put the image from camera in a Nexus 6 with Android 6. The solution would be adding this to your 58 line in ImagePicker.java: boolean isCamera = (imageRetu...
Generating CSV file for Excel, how to have a newline inside a value
...ll be trashed.
Following comments apply to Excel 2003, 2007 and 2013; not tested on Excel 2000
If you open the file by double-clicking on its name in Windows Explorer, everything works OK.
If you open it from within Excel, the results vary:
You have only ASCII characters in the file (and no BOM...
How to get the previous URL in JavaScript?
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As of my latest testing 'document.referrer' now just return domain name and not the full URL to avoid tracking.
– Akash Kumar Seth
Oct 10 '19 at 7:46
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